Icon Selector : Button « SWT JFace Eclipse « Java
Icon Selector
/******************************************************************************
* Copyright (c) 1998, 2004 Jackwind Li Guojie
* All right reserved.
*
* Created on Jan 5, 2004 2:15:34 PM by JACK
* $Id$
*
* visit: http://www.asprise.com/swt
*****************************************************************************/
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class IconSelector {
Display display = new Display();
Shell shell = new Shell(display);
Label labelIconFile;
Text textIconFile;
Button buttonIconBrowse;
Button buttonSetIcon;
Image shellIcon;
Image buttonIcon;
public IconSelector() {
initializeUI();
shell.pack();
shell.open();
//textUser.forceFocus();
// Set up the event loop.
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
// If no more entries in event queue
display.sleep();
}
}
display.dispose();
}
private void initializeUI() {
GridLayout gridLayout = new GridLayout(3, false);
shell.setLayout(gridLayout);
// Adds components to the first row.
labelIconFile = new Label(shell, SWT.NULL);
textIconFile = new Text(shell, SWT.SINGLE | SWT.BORDER);
GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
gridData.grabExcessHorizontalSpace = true;
textIconFile.setLayoutData(gridData);
buttonIconBrowse = new Button(shell, SWT.PUSH);
// last row.
gridData = new GridData();
gridData.horizontalSpan = 3;
gridData.horizontalAlignment = GridData.CENTER;
buttonSetIcon = new Button(shell, SWT.PUSH);
buttonSetIcon.setLayoutData(gridData);
shell.setText("Icon Selector");
labelIconFile.setText("Select an icon:");
buttonIconBrowse.setText("Browse");
buttonSetIcon.setText("Set Icon");
// Register listeners.
buttonIconBrowse.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
FileDialog dialog = new FileDialog(shell, SWT.OPEN);
String file = dialog.open();
if (file != null) {
textIconFile.setText(file);
}
}
});
buttonSetIcon.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
if(shellIcon != null)
shellIcon.dispose();
try {
shellIcon = new Image(display, textIconFile.getText());
shell.setImage(shellIcon);
}catch(Exception ex) {
ex.printStackTrace();
}
}
});
}
public static void main(String[] args) {
IconSelector iconSelector = new IconSelector();
}
}
